Yamabiko Corporation

Walbro Corporation

Yuuta Kobayashi

Hisato Osawa

Kosuke Matsumoto

Takuo Yoshizaki

Takahiro Yamazaki

Hidekazu Tsunoda

Hiroki Ogasawara

To improve the effect of preventing contamination of an element in an air cleaner. An air cleaner includes a first inlet () through which air is fed to an intake system air passage and a second inlet () through which air is fed to an intake system air-fuel mixture passage. An extended passage () leads to the second inlet (), for example. A passage forming member () forming the extended passage () is shaped to surround a periphery of the first inlet (). The passage forming member () forms a blown-back fuel diffusion preventing region () leading to the first inlet ().

Air cleaner for stratified scavenging two-stroke internal combustion engine

To enhance responsivity of temperature sensor detecting an engine temperature. A temperature sensor componentincludes a metal washer. The temperature sensor componenttransfers the engine temperature to a sensor bodyvia the heat transfer washer. A cylinder portionof a cylinder blockhas two bosses. The washerof the temperature sensor componentis fixed to the bosstogether with the electronic control unit

Portable working machine

Growing community of inventors

Tokyo, Japan

Yuuta Kobayashi